LTSP includes a version of libVNCServer that is vulnerable to an authentication bypass.
|Package||net-misc/ltsp on all architectures|
|Affected versions||< 4.2-r1|
|Unaffected versions||>= 4.2-r1|
The Linux Terminal Server Project adds thin-client support to Linux servers.
The LTSP server includes vulnerable LibVNCServer code, which fails to properly validate protocol types effectively letting users decide what protocol to use, such as "Type 1 - None" (GLSA-200608-05). The LTSP VNC server will accept this security type, even if it is not offered by the server.
An attacker could exploit this vulnerability to gain unauthorized access with the privileges of the user running the VNC server.
There is no known workaround at this time.
All LTSP users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/ltsp-4.2-r1"
March 18, 2007
March 18, 2007: 01